In a projectile motion the velocity
1. is always perpendicular to the acceleration
2. is never perpendicular to the acceleration
3. is perpendicular to the acceleration for one instant only
4. is perpendicular to the acceleration for two instants
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTwo bullets are fired simultaneously, horizontally and with different speeds from the same place. Which bullet will hit the ground first?
1. the faster one
2. the slower one
3. both will reach simultaneously
4. depends on the masses
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe range of a projectile fired at an angle of 15° is 50 m. If it is fired with the same speed at an angle of 45°, its range will be:
1. 25 m
2. 37 m
3. 50 m
4. 100 m
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTwo projectiles A and B are projected with angle of projection 15° for the projectile A and 45° for the projectile B. If RA and RB be the horizontal range for the two projectiles, then
1. RA < RB
2. RA = RB
3. RA > RB
4. the information is insufficient to decide the relation of RA with RB
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology